test_vmrglb_1:
  #_ REGISTER_IN v3 [00010203, 04050607, 08090A0B, 0C0D0E0F]
  #_ REGISTER_IN v4 [10111213, 14151617, 18191A1B, 1C1D1E1F]
  vmrglb v5, v3, v4
  blr
  #_ REGISTER_OUT v3 [00010203, 04050607, 08090A0B, 0C0D0E0F]
  #_ REGISTER_OUT v4 [10111213, 14151617, 18191A1B, 1C1D1E1F]
  #_ REGISTER_OUT v5 [08180919, 0a1a0b1b, 0c1c0d1d, 0e1e0f1f]

test_vmrglb_2:
  #_ REGISTER_IN v3 [F0F1F2F3, F4F5F6F7, F8F9FAFB, FCFDFEFF]
  #_ REGISTER_IN v4 [00010203, 04050607, 08090A0B, 0C0D0E0F]
  vmrglb v5, v3, v4
  blr
  #_ REGISTER_OUT v3 [F0F1F2F3, F4F5F6F7, F8F9FAFB, FCFDFEFF]
  #_ REGISTER_OUT v4 [00010203, 04050607, 08090A0B, 0C0D0E0F]
  #_ REGISTER_OUT v5 [F808F909, FA0AFB0B, FC0CFD0D, FE0EFF0F]
